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    Home » MAINS

    Cheesy Cauliflower Rarebit Slab Pie with a Rye Crust

    Modified: Sep 27, 2023 by Susan Pridmore · This post may contain affiliate links · 4 Comments

    A cheesy cauliflower rarebit pie wrapped up in a rye crust. This special dish is perfect for a dinner party or special occasion. I recommend my French braised cabbage as a great side dish and a simple green salad.

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    A cauliflower rarebit slab pie in a baking sheet, with one piece on a plate with a fork.

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    Jump to:
    • 🤷‍♀️ What is Rarebit?
    • 🧅 Main Ingredients + Notes
    • 🔪 Recommended Equipment
    • 🏔 Tips for Baking Rarebit Pie at High Altitudes
    • Cheesy Cauliflower Rarebit Pie with a Rye Crust

    Have you ever had Stouffer's Welsh Rarebit? When I was a kid (and long after that), this was one of my favorite dinners. Mom wasn't an adventurous cook, so our version always came from a box with the Stouffer's banner plastered across it.

    This recipe is kind of like a cheesy cauliflower casserole with that Welsh Rarebit tang, wrapped up as a slab pie with a rye crust. And yes, it's just as amazing as it sounds. Think of it as a Welsh rarebit pie with cauliflower.

    🤷‍♀️ What is Rarebit?

    Rarebit usually refers to Welsh rarebit, and it's super easy to make. Cheddar cheese, Worcestershire sauce, and mustard make up the base, along with some kind of liquid. Beef broth is typical, but this recipe nails it with a dark Stout beer like Guinness.

    🧅 Main Ingredients + Notes

    For the all of the ingredients, measurements and directions, go to the Recipe Card at the bottom of this post.

    Rye Crust

    • All purpose flour
    • Rye flour
    • Unsalted butter
    • Vegetable shortening
    • Ice water

    Filling

    • Shallots
    • Fresh thyme
    • Cauliflower
    • Dark beer - such at Guinness.
    • Fresh parsley
    • Whole milk
    • Eggs
    • Worcestershire sauce - use Annie's Worcestershire sauce which is vegetarian. Standard Worcestershire sauce contains anchovies.
    • Coleman's mustard
    • Extra sharp cheddar cheese
    • Parmesan cheese

    Disclosure: This post may contain affiliate links to products and foods I use in my kitchen. This means that at no additional cost to you, I will earn a commission if you click through and make a purchase. To view my entire storefront of recommended kitchen tools and equipment, check out my shop on Amazon.

    🔪 Recommended Equipment

    • Food processor
    • Baking sheet - use a quarter baking sheet size
    • Rolling pin
    • Parchment paper
    • Large skillet
    • Chef's knife
    • Small mixing bowl
    • Whisk

    🏔 Tips for Baking Rarebit Pie at High Altitudes

    I used Light Rye flour, and didn't need to make any adjustment for liquid in the crust recipe. If you use Dark Rye flour, however, you may need to add another 1 - 2 tablespoons of liquid if you're making this at 6000 ft and higher.

    For altitudes 6000 ft and higher, I recommend increasing the liquid for the filling as follows: ⅔ cup whole milk instead of ½ cup, and 3 large eggs + 1 egg white instead of 3 large eggs.

    A cauliflower rarebit slab pie fresh from the oven in a baking sheet.

    Disclosure: This recipe was taken from the Pie Squared: Irresistibly Easy Sweet & Savory Slab Pies cookbook. I was provided a copy by the publisher, as well as an OXO quarter baking sheet which I used. All opinions are my own.

    For another cauliflower tart, check out this roasted cauliflower tart with kale and tomatoes, all baked in a cheddar cheese crust.

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    Enter your email & I'll send it to your inbox. Plus, get great new recipes from me every week!

    Save Recipe
    A cauliflower rarebit slab pie in a baking sheet, with one piece on a plate with a fork.
    5 from 2 votes

    Cheesy Cauliflower Rarebit Pie with a Rye Crust

    This is a perfect comfort meal for cold wintery nights, from Pie Squared Slab Pies cookbook by Cathy Barrow.
    Print Recipe Save Saved! Pin Recipe Add to Recipe Collection Go to Collections Add to Shopping ListGo to Shopping List
    Prep Time30 minutes mins
    Cook Time1 hour hr 25 minutes mins
    chill time4 hours hrs
    Total Time5 hours hrs 55 minutes mins
    Course: Vegetable Side, Vegetarian Appetizer or Main, Vegetarian Main Dish
    Cuisine: Any
    Keyword: Welsh rarebit pie, Welsh rarebit pie with cauliflower
    Servings: 10
    Calories: 526kcal
    Author: Susan Pridmore
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    Equipment

    • Kitchen scale
    • Food Processor
    • Quarter Baking Sheet
    • Parchment paper
    • rolling pin
    • Large skillet
    • Chef's knife
    • Small mixing bowl
    • Whisk
    • Pastry brush

    Ingredients

    Rye Crust

    • 1 ¾ cups + 1 tablespoon all-purpose flour, (225 grams)
    • 1 cup rye flour, (100 grams)
    • 8 tablespoons unsalted butter, cubed and frozen for 20 minutes
    • 8 tablespoons vegetable shortening, frozen for 20 minutes
    • ½ teaspoon kosher salt
    • ½ cup ice water

    Filling

    • 3 tablespoons extra virgin olive oil
    • 1 ½ cups sliced shallots, about 5
    • 6 stalks fresh thyme
    • 1 pound cauliflower, cut into small florets, about 5 cups
    • ½ cup dark beer, such as Guinness,
    • ¼ cup finely chopped fresh flat-leaf parsley,
    • ½ teaspoon kosher salt
    • ¼ teaspoon freshly ground black pepper
    • ½ cup whole milk,
    • 3 large eggs
    • 2 tablespoons Worcestershire sauce
    • ½ teaspoon Coleman's mustard powder or other dry mustard powder
    • 10 ounces extra sharp cheddar cheese, coarsely grated for about 2 ½ cups
    • 1 egg yolk
    • 1 tablespoon water
    • ¼ cup finely grated Parmigiano Reggiano

    Instructions

    For the crust...

    • In the food processor, pulse the flours, butter, shortening, and salt until the fats are in small pieces coated with flour, about 15 times.
      Add ¼ cups of the water, and then 1 tablespoon at a time, pulsing until the mixture almost forms a ball.
      Form the dough into a 6-  by 4-inch rectangle using plastic wrap and a bench scraper to firmly press the dough into a cohesive form. Wrap tightly and refrigerate a minimum of 4 hours.
    • Heat the oven to 425˚F; if you have one, place a baking stone or inverted baking sheet on the center rack to heat. 
    • Remove the dough from the refrigerator and allow it to warm slightly. Divide the dough into two pieces, one slightly larger than the other.
      Roll out the larger piece to 11" X 15", and transfer it to the slab pie pan, pressing the dough into the corners of the pan and allowing the excess to drape over the sides. Cover with plastic and refrigerate. Roll out the second piece of dough to 10 by 14 inches, place it on a lightly floured sheet of parchment, cover with plastic and refrigerate.

    Filling

    • Heat the olive oil in a deep skillet over medium heat until it shimmers. Add the shallots and thyme and cook until the shallots are browned on the edges. Fish out and discard the thyme.
      Add the cauliflower florets and stir to coat with oil. Increase the heat to medium-high, pour in the beer, and bring to a boil. Reduce the heat, cover, and steam the cauliflower until fork-tender, about 7 minutes. 
      Uncover and continue to cook until all the liquid has evaporated, another 5 minutes. Remove the pan from the heat and stir in the parsley, salt, and pepper. Cool to room temperature.
      Note: this step can be done while the dough is chilling at the end of Step 1.
    • Fill the bottom crust with the cauliflower filling. Whisk together the milk, eggs, Worcestershire, and mustard in a small bowl, and fold in the cheddar cheese. Pour it over the cauliflower filling, and cover the filling with the top crust.
      Crimp and slash the top crust a few times with a sharp knife.
    • Combine the egg yolk and water in a small bowl, and use a pastry brush to paint it on the top crust from edge to edge.
      Sprinkle with the grated Parmigiano, and slide the pie into the hot oven (on top of the baking stone or baking sheet if using. Bake for 20 minutes.
      Reduce the temperature to 375˚F and bake until the crust is bronzed and the filling is bubbling, 25-40 minutes. Cool slightly before slicing into portions.

    Notes

    Make Ahead: Cook the cauliflower filling up to 4 hours in advance.
    Some steps can be done together. For example, while the dough is chilling make the cauliflower filling. While it cools, roll out the dough and drape one piece into a baking pan. 

    Nutrition

    Calories: 526kcal | Carbohydrates: 35.4g | Protein: 15.2g | Fat: 36.5g | Saturated Fat: 15.7g | Polyunsaturated Fat: 4.6g | Monounsaturated Fat: 12.8g | Trans Fat: 1.7g | Cholesterol: 124.1mg | Sodium: 548.3mg | Potassium: 421.7mg | Fiber: 4g | Sugar: 5g | Vitamin A: 859.8IU | Vitamin C: 28.1mg | Calcium: 295.6mg | Iron: 2.7mg

    « Vegetarian Baked Spaghetti Casserole
    Easy Bailey's Mousse »

    About Susan Pridmore

    Susan Pridmore is an award-winning cookbook author and the owner of The Wimpy Vegetarian. She has been featured in Huffington Post, Healthline, BuzzFeed, and has written for and developed recipes for The Food Network and Parade Magazine. She is professionally trained and focuses on easy vegetarian recipes for busy lives, bread-baking, and tips for new vegetarians. Susan lives in the mountains in Lake Tahoe with her husband and mini-labradoodle.

    Reader Interactions

    Comments

    1. Eha

      November 10, 2018 at 10:13 pm

      Tho' I write to you from my home in Australia I was born in Estonia in the Baltics and these were virtually the only kind of pies we made whether cabbage & egg, carrot and raisins or a dozen other savoury or sweet kinds. Practical and crowd-pleasing ~! Like the rye crust naturally and the Guinness and the cauliflower I have not seen used . . may cut down a wee bit on the cheese but otherwise it is on the kitchen-to-do list . . .

      Reply
      • The Wimpy Vegetarian

        November 10, 2018 at 11:00 pm

        We live in the mountains, and it's very cold at night. It was such a wonderful dish to enjoy while the wind blew outside. And I was surprised that the amount of cheese called for didn't overwhelm the pie. I hope you give the recipe a try - it's also very amenable to adjustments 🙂 BTW, years ago, I took a cooking class from someone from Eastern Europe, and she demonstrated a fascinating meat and cabbage filled pastry similar to a pie. I need to look it up now that you've jogged my memory! It was delicious.

        Reply
      • Golda

        March 15, 2025 at 10:39 am

        How do you think this recipe would be with puff pastry instead of the rye crust, just laid across the top?

        Reply
        • Susan Pridmore

          March 15, 2025 at 12:41 pm

          I haven't done it, but it should work fine. Please let me know if it works well so I can include it in the post!

          Reply
    5 from 2 votes (2 ratings without comment)

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