Blueberry Crumb Cake 🫐🫐

Preheat oven to 350°F. Grease 8x8 square baking dish or you can use a 9” round springform pan. Make crumb by combining all crumb ingredients together with a fork. Set aside. Combine flour, baking powder and salt in a small bowl and set aside. Beat butter and sugar till fluffy, about 2 minutes. Add lemon zest, eggs and milk and beat till combine. Add one cup at a time of flour mixture till combine. Batter will be thick. Fold in blueberries. Place half batter in baking dish and smooth out. Sprinkle layer of crumb in center and add remaining batter and sprinkle remaining of crumb on top. Bake for about 50-55 minutes if using a 8x8 baking dish. Would check as early as 45 minutes for a 9” round dish. Remove from oven and let cool. Make icing by mixing all ingredients together and drizzle on top of cake. Slice and enjoy!