How many servings does this recipe make?

This recipe makes 4 servings. You can adjust the portion size directly on this page.

What ingredients do I need for Betty'S Butter Tart Squares?

You need 12 ingredients. The key ingredients include: Base, 1/2 cup butter (3/4 for 9x13), 1 cup flour (1 1/2 for 9x13), 2 tablespoons brown sugar (3 for 9x13), and more.

Is Betty'S Butter Tart Squares suitable as baking & desserts?

Yes, Betty'S Butter Tart Squares falls under the Baking & Desserts category and is a great choice for this type of meal.

How do I store leftover Betty'S Butter Tart Squares?

Store in an airtight container at room temperature for up to 3–5 days. For longer storage, freeze for up to 3 months — no need to refrigerate or reheat.

Betty'S Butter Tart Squares Recipe

Name: Betty'S Butter Tart Squares
Prep time: 15 min
Cook time: 30 min
Total time: 45 min
Yield: 4 servings
Ingredients: Base; 1/2 cup butter (3/4 for 9x13); 1 cup flour (1 1/2 for 9x13); 2 tablespoons brown sugar (3 for 9x13); Filling; 2 eggs, beaten (3 for 9x13); 1 1/2 cups brown sugar (2 1/4 for 9x13); 1/2 cup old-fashioned oatmeal (3/4 for 9x13); 1/4 teaspoon salt (plus a little more for 9x13); 1/2 teaspoon baking powder (3/4 for 9x13); 1 teaspoon vanilla (1 1/2 for 9x13); 1/2 cup chopped walnuts (3/4 for 9x13)

Bake this irresistible Betty'S Butter Tart Squares at home. Made with Base, butter, flour and brown sugar. Easy step-by-step instructions included.

This Betty'S Butter Tart Squares relies on simple, everyday ingredients such as base, butter (3/4 for 9x13), flour (1 1/2 for 9x13) and brown sugar (3 for 9x13). It comes together quickly and makes 4 servings, at about 826 kcal each. The step-by-step instructions below are written to be easy to follow, even on a busy day.

Whether you're rounding off a family dinner, bringing a treat to a gathering, or simply satisfying a sweet craving, this Betty'S Butter Tart Squares delivers. Serve it warm or at room temperature, and add a scoop of ice cream or a spoonful of whipped cream for an extra-special finish.

Updated Jun 30, 2026

Serves 4 Baking & Desserts

Tips for the best results

Read through all the steps once before you start and measure out your ingredients first — it makes everything go more smoothly.
Preheat the oven fully and bake on the middle rack for the most even results.
Check for doneness a few minutes early — a toothpick in the center should come out with just a few moist crumbs.
Let it cool before slicing so it sets properly and holds its shape.
Store leftovers in an airtight container in the fridge and enjoy within a few days.

Variations & substitutions

Use a neutral oil or a plant-based spread in place of butter for a dairy-free version.
Brown sugar instead of white sugar adds a deeper, more caramel-like flavor.
Leave out the nuts to make it nut-free, or swap in seeds for a similar crunch.
A good 1:1 gluten-free flour blend works well if you need a gluten-free version.

No specific allergen information. Please check the ingredient list for possible allergens.

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Betty'S Butter Tart Squares

Tips for the best results

Variations & substitutions

My Personal Notes

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