Check Out This Beautiful, Naturally Purple, Blueberry Croissant Recipe

Name: Check Out This Beautiful, Naturally Purple, Blueberry Croissant Recipe
Cook time: 3 h 8 min
Total time: 3 h 8 min
Cuisine: European, Mediterranean, French
Ingredients: 1 packet active yeast; 1 cup milk; 4 Tbsp sugar, divided; pinch of salt; 1/4 cup butter; 4 cups of flour; 1/2 cup blueberries; 1 ice cube; 1/4 cup lemon zest; 2 Tbsp powdered sugar; 2 sticks of butter