1 8-ounce apple (I prefer to use combo of 1/2 gala and 1/2 McIntosh apples)

3/4 teaspoons granulated sugar, or to taste

1/8 rounded teaspoon cinnamon

1/4 scant tsp. flour

cooking spray

Crumb Topping:

1/2 tablespoon butter

1 tablespoon quick cooking oatmeal

1 tablespoon all-purpose flour

1 tablespoon packed brown sugar

a tiny pinch of baking powder

a tiny pinch of salt

Suggested supplies (affiliate links):


Small BPA Free Cutting Board


Peel, core, and slice apple into wedges. Slice each wedge into 1/8-inch thick pieces. Place apple into a bowl. Add sugar, cinnamon, and flour. Combine.

Place the butter in a small microwaveable plate. Microwave for 20 seconds to melt.

Meanwhile, spray a 1-cup capacity microwavable ramekin or mug with cooking spray. Add apple. Mound apple as high as you can without overflowing. They will cook down. There may be some excess depending on how large the apple was.

Remove the plate of butter from the microwave. Place the apple in the microwave. Cook for 2 1/2 minutes.

While the apple cooks, add the remaining crumb topping ingredients to the melted butter. Mix to form wet coarse crumbs. Spread crumbs into an even layer on a small microwaveable plate.

After the apple has cooked for 2 1/2 minutes, place the crumb topping plate beside the apple filling. Microwave for 30 seconds. Stir the crumb topping to prevent the sugar from burning. Cook one more cycle for 30 seconds. Stir crumb topping. Microwave for 20 additional seconds (30 seconds may be too long and the sugar in the crumb topping may start to burn).

Remove content from microwave. Place crumb topping over apple and serve (with a dollop of vanilla ice cream, optional).

Makes 1 individual size serving.

Recipe Notes:

    1. If using tart apple, you might want to increase the granulated sugar slightly.
    2. Depending on the kind of apple you use and your personal preference on the firmness or tenderness of your apple crisp, adjust the cooking time accordingly. The total cooking time in this recipe yields apple that is tender but with a slight bite.
    3. Cooking time is based on a 1000 W microwave oven. Cooking time may vary depending on the power of your microwave.