Preheat and prep: Heat oven to 350°F (175°C). Line a 12-cup muffin tin with liners or grease well.
Mix wet ingredients: In a large bowl, whisk 2 eggs, 1/2 cup Greek yogurt, 3/4 cup milk, 3 tablespoons honey, 1 teaspoon vanilla, and 2 tablespoons oil or melted butter until smooth.
Add dry ingredients: Add 2 cups Kodiak mix, 1 teaspoon baking powder, 1 teaspoon cinnamon, and a pinch of salt.
Stir gently until just combined. The batter should be thick but scoopable.
Fold in extras: Gently fold in 1 cup of your chosen mix-ins. If using frozen fruit, do not thaw.
Fill the tin: Divide batter evenly among the 12 cups, filling about 3/4 full.
For taller domes, rest the filled tin for 5 minutes.
Bake: Bake 16–20 minutes, or until tops are set and a toothpick comes out mostly clean with a few moist crumbs.
Cool: Let muffins rest in the pan for 5 minutes, then transfer to a rack to cool completely. This helps them set and stay tender.