Apple Oatmeal Muffins with Streusel Recipe

Ingredients

Topping

• ¼ teaspoon ground cinnamon
• ¼ cup rolled oats old-fashioned
• 1 tablespoon light brown sugar packed
• 2 tablespoons unsalted butter melted

Muffins

• 1 cup milk at room temperature
• 1 teaspoon lemon juice
• 1 ½ cups rolled oats old-fashioned
• 1 ½ cups all-purpose flour
• ½ teaspoon salt
• ½ teaspoon baking soda
• 1 ½ teaspoon baking powder
• 1 teaspoon ground cinnamon
• 1 pinch allspice or nutmeg (optional)
• ½ cup light brown sugar packed
• ½ cup sunflower oil
• 1 egg at room temperature
• ½ teaspoon vanilla extract
• 1 cup baking apple chopped

Instructions

1. Combine ground cinnamon, rolled oats, brown sugar, and melted butter in a small bowl and mix until the mixture forms clumps.
2. Place the topping mixture in the refrigerator to chill while preparing the muffins.
3. In a medium bowl, stir lemon juice into the milk and add rolled oats. Let this mixture sit to soak while you prepare the other ingredients.
4. Preheat the oven to 350°F (180°C). Line a 12-cup muffin tin with paper liners or grease and flour the cups if not using liners.
5. Sift together the flour, salt, baking soda, baking powder, ground cinnamon, and optional allspice or nutmeg into a large bowl.
6. Add the brown sugar to the oat and milk mixture and stir to combine.
7. Mix in the oil, egg, and vanilla extract into the oat mixture, stirring gently until everything is incorporated without overmixing.
8. Pour the wet ingredients into the dry ingredients, then fold in the chopped apple using a spatula until just combined. Avoid overmixing to keep muffins tender.
9. Spoon the batter evenly into the prepared muffin cups, filling each about three-quarters full.
10. Sprinkle the chilled oat topping evenly over each muffin.
11. Bake for 25 minutes or until a toothpick inserted into the center comes out clean.
12. Remove the muffins from the oven and allow them to cool on a wire rack before serving.
13. Store leftover muffins in an airtight container in the refrigerator and warm briefly before eating, or freeze for up to one month.

Notes

• Oven temperatures and baking times can vary, so keep an eye on your muffins and adjust as needed.
• Using tart baking apples like Granny Smith or slightly sweeter varieties like Honeycrisp or Pink Lady works well for balanced flavor.
• Do not overmix the batter to keep muffins tender and moist.
• Make sure ingredients like the milk and egg are at room temperature to ensure better mixing and texture.
• You can substitute sunflower oil with any neutral vegetable oil if unavailable.