Pumpkin streusel muffins

These muffins taste just like eating pumpkin pie! I like the strong pumpkin flavor.

Pumpkin streusel muffins
1 cup self-rising flour
1/2 cup sugar
2 tsp cinnamon
1 tsp apple pie spice mix (or 1/2 tsp each cloves and nutmeg)
1/2 tsp ginger
3/4 cup canned pumpkin
1/2 cup plain Greek yogurt
1/4 cup milk
1/4 cup oil
1 tsp vanilla

Streusel topping:
1/4 cup flour
2 tbsp sugar
1 tsp cinnamon
1 1/2 tbsp butter

Preheat oven to 350.
Combine dry ingredients, then add in wet ingredients. Stir until mixed. Scoop mixture into greased muffin tin.
For streusel, mix together flour, sugar, and cinnamon. Cut the butter into small pieces with a knife or fork, then use your fingers to rub the mixture together until butter is evenly distributed and mixture looks like wet sand.
Sprinkle streusel over muffin batter in tins, and bake for 18-20 minutes, or until streusel is light brown and a toothpick inserted into a muffin comes out clean.