The Best Ever Blueberry Muffins w/Lemon Sugar Topping (or Streusel Topping). I did BOTH the sugar topping (with orange (actually clementine) instead of lemon) AND the streusel topping. Also used raspberries instead of blueberries.
Cinnamon Sugar Donut Muffins - these remind me of a recipe my mom used to make. Next time I would put these directly in the muffin tin so I could roll the whole thing in cinnamon sugar, not just the tops :)