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 Old Fashioned Oatmeal Cake?

You need 20 ingredients. The key ingredients include: 1 1/2 cups boiling water, 1 cup oatmeal (I use quick oats), 1/2 cup shortening or 1/2 cup margarine, 2 eggs, beaten, and more.

Is Old Fashioned Oatmeal Cake suitable as baking & desserts?

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

How do I store leftover Old Fashioned Oatmeal Cake?

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.

Old Fashioned Oatmeal Cake Recipe

Name: Old Fashioned Oatmeal Cake
Prep time: 15 min
Cook time: 30 min
Total time: 45 min
Yield: 4 servings
Ingredients: 1 1/2 cups boiling water; 1 cup oatmeal (I use quick oats); 1/2 cup shortening or 1/2 cup margarine; 2 eggs, beaten; 1 1/2 cups flour; 1 teaspoon cinnamon; 1 teaspoon baking powder (optional); 1 cup brown sugar; 1 cup white sugar; 1 cup margarine; 1 teaspoon vanilla; 1 teaspoon baking soda; 1 pinch salt; topping; 6 tablespoons melted butter; 2/3 cup brown sugar; 1 cup coconut; 1 cup chopped nuts; 1/4 cup canned milk (may need 1/4 c more if to dry); 1 teaspoon vanilla

Start your day right with this Old Fashioned Oatmeal Cake recipe. Made with boiling water, oats, shortening and eggs. Easy step-by-step instructions inc…

This Old Fashioned Oatmeal Cake relies on simple, everyday ingredients such as boiling water, oatmeal (i use quick oats), eggs, beaten and flour. It comes together quickly and makes 4 servings, at about 1744 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 Old Fashioned Oatmeal Cake 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

1744

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

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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Old Fashioned Oatmeal Cake

Tips for the best results

Variations & substitutions

My Personal Notes

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