Coffee Cake Muffins

"These muffins are a perfect pairing for your morning coffee or tea. They're also great for breakfast, brunch, or as an afternoon pick-me-up. You can make the streusel topping ahead of time and store it in an airtight container until you're ready to bake the muffins. It's easy to prepare these ahead of time and keep them in your freezer until you're ready to bake them. These muffins are sure to be a hit with both kids and adults alike."