• Pre heat oven to 400 degrees F.

Filling

• Add brown sugar and cinnamon together and whisk until well incorporated.

Streusel

• To small bowl, add flour, sugar and cinnamon and whisk together. Add melted butter in slowly allowing the ingredients to absorb and form pea sized clumps.

Batter

• Cream butter and sugars. Scrape down the sides of the bowl and mix until everything is well incorporated.
• Add in your eggs one at a time. Add in your vanilla extract.
• In a separate bowl whisk together your milk and Greek yogurt.
• Slowly mix your milk/yogurt mixture into your butter and egg mixture.
• To a separate large mixing bowl, add the dry ingredients. Whisk together thoroughly.
• Add your wet ingredients to your dry ingredients. Fold into dry ingredients just until you can no longer see any dry flour.

Assemble

• Add a quarter cup batter to your muffin tin. Then add a tablespoon of filling followed by another quarter cup batter. Then top of with a tablespoon of streusel.
• Bake muffins at 400 degrees Fahrenheit for 5 minutes, then turn oven down to 350 degrees and bake another 10 minutes until knife comes out clean, or internal temperature reads 195 degrees Farenheit.