These one-bowl, tender-crumbed peach (or nectarine) crumble muffins are studded with juicy fresh peaches and have a sweet, buttery, cinnamon streusel topping.
Preheat oven to 400. Spray 15 muffin cups generously with non-stick spray.
Sprinkle the flour, baking powder, baking soda and salt evenly over the top and stir with a folding motion until most of the flour mixture is incorporated. Gently fold in the diced nectarines using a rubber spatula. Scoop the batter into the prepared muffin cups , filling about 3/4 full.
Combine all crumble ingredients in a medium-size bowl (you can just wipe out the muffin bowl and use the same bowl if you want). Mix with a fork until crumbles form.( If crumble seems too wet and crumbs don't form, add another tablespoon of flour and mix again with a fork.)
Sprinkle each muffin with a rounded teaspoon of the crumble. Wait 10 minutes before baking muffins.
See Café Tips above for more detailed instructions and tips.