Preheat oven to 350F.Grease or line a muffin tin (standard size) with paper liners.Whisk together the eggs, kefir, ghee, and almond extract in a medium bowl.In a separate, larger bowl stir together the sugar, einkorn flour, oat flour, almond meal, baking powder, baking soda, and salt.Add wet ingredients to dry, and stir to combine.Fold in your strawberries.For the streusel, combine oats, ghee, and sugar in a small bowl. You can use a spoon to get everything really well incorporated or just use your hands.Fill your muffin tins about 3/4 full, so that there is room for the muffins to rise.Sprinkle streusel on top of each muffin.Bake muffins on center rack 25 minutes, or until centers have cooked through (test with a sharp, clean knife by poking right into the center of a muffin).Remove and let completely cool before eating.