1 ½cupsunbleached all-purpose flour, spooned and leveled190g
1tspbaking powder
½tspbaking soda
½tspsalt
1tspground cinnamon
¼tspground nutmeg, optional (for fall flavors)
½cupgranulated sugar100g
1large egg, room temperature
⅓cupavocado oil80g
¼cupunsweetened applesauce63g
¼cupmilk 60g
1tspvanilla extract
1cupgrated zucchini120g
¾cupgrated carrot90g
Streusel Topping
¼cupunbleached all-purpose flour, spooned and leveled30g
¼cupbrown sugar, packed50g
2tbsprolled oats
½tspground cinnamon
3tbspsalted butter, melted 42g
¼cupchopped nuts (e.g., pecans or walnuts, optional)30g
Instructions
Preheat the Oven: Set your oven to 375°F (190°C). Line a 12-cup muffin tin with paper liners or lightly grease with avocado oil.
Prep the Veggies: Grate the zucchini and carrot using a box grater or food processor. For zucchini, squeezing out excess liquid is optional for a moister muffin, but recommended if you’re swapping in wetter summer squash to avoid soggy results. Pat carrots dry if they’re very wet.
Make the Streusel: In a small bowl, combine flour, brown sugar, rolled oats, and cinnamon. Stir in melted butter until the mixture forms coarse crumbs. Add chopped nuts if you’d like extra crunch. Set aside.
Mix Dry Ingredients: In a large bowl, whisk together flour, baking powder, baking soda, salt, cinnamon, nutmeg (if using), and granulated sugar.
Mix Wet Ingredients: In a medium bowl, whisk the egg, avocado oil, applesauce, milk, and vanilla extract until smooth.
Combine Wet and Dry: Pour the wet ingredients into the dry ingredients and stir gently with a spatula until just combined. A few lumps are fine—overmixing makes tough muffins!
Fold in Veggies: Gently fold in the grated zucchini and carrots until evenly distributed.
Fill the Muffin Tin: Divide the batter evenly among the 12 muffin cups, filling each about ¾ full. Sprinkle 1-2 tsp of streusel topping over each muffin, pressing lightly to help it stick.
Bake: Bake for 20-25 minutes, until a toothpick inserted in the center comes out clean and the streusel is golden brown.
Cool: Let the muffins cool in the tin for 5 minutes, then transfer to a wire rack to cool completely.
Notes
Flavor Development: Muffins taste great fresh but develop deeper flavors by the next day, making them perfect for make-ahead breakfasts or snacks.
Nutmeg: Include ¼ tsp nutmeg for a warm, fall-inspired flavor (great for September baking). Omit for a lighter, summer-friendly taste.
Zucchini vs. Summer Squash: No need to squeeze zucchini for this recipe. If substituting summer squash (which is wetter), squeeze it in a kitchen towel to prevent soggy muffins.
Streusel Tip: For a chunkier streusel, use cold butter and cut it into the dry ingredients with a fork or pastry cutter instead of melting.
Storage: Store at room temperature in an airtight container for up to 2 days, in the refrigerator for up to 5 days, or freeze for up to 3 months. Thaw at room temperature or reheat in the microwave for 20-30 seconds.