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 Oatmeal Cake With Penuche Frosting?

You need 11 ingredients. The key ingredients include: 1 c. old fashioned rolled oats, 1 c. boiling water, 1/2 c. margarine, 1 1/2 c. brown sugar, and more.

Is Oatmeal Cake With Penuche Frosting suitable as baking & desserts?

Yes, Oatmeal Cake With Penuche Frosting falls under the Baking & Desserts category and is a great choice for this type of meal.

How do I store leftover Oatmeal Cake With Penuche Frosting?

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.

Oatmeal Cake With Penuche Frosting Recipe

Name: Oatmeal Cake With Penuche Frosting
Prep time: 15 min
Cook time: 30 min
Total time: 45 min
Yield: 4 servings
Ingredients: 1 c. old fashioned rolled oats; 1 c. boiling water; 1/2 c. margarine; 1 1/2 c. brown sugar; 2 eggs; 1 c. flour; 1 tsp. baking powder; 1 tsp. baking soda; 1/4 tsp. salt; 1/2 c. chopped nuts; 1 tsp. vanilla

Start your day right with this Oatmeal Cake With Penuche Frosting recipe. Made with rolled oats, boiling water, margarine and brown sugar. Easy step-by-…

This Oatmeal Cake With Penuche Frosting relies on simple, everyday ingredients such as old fashioned rolled oats, boiling water, margarine and brown sugar. It comes together quickly and makes 4 servings, at about 1400 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 Oatmeal Cake With Penuche Frosting 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

1400

kcal

Calories

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

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.

My Personal Notes

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Oatmeal Cake With Penuche Frosting

Tips for the best results

Variations & substitutions

My Personal Notes

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