INGREDIENTS
For the cinnamon crumble topping:
1/2 cup
sugar
1/2 cup
flour
1 tsp
cinnamon
salt
1/4 cup
cold butter, cubed
For the muffins:
1 1/2 cups
flour
3/4 cup
sugar
2 tsp
baking powder
1/4 tsp
salt
1 tbsp
lemon zest
2 tbsp
lemon juice
1/3 cup
vegetable oil
1/4 cup
milk
1
egg
2 cups
blueberries*