Preheat oven to 350 °F (175C)
Line or grease a 12 cavity muffin tin.
Sift the Keto Wheat flour into a mixing bowl.
Add the poppy seeds, baking powder, baking soda and salt and whisk until well combined.
In a separate mixing bowl, cream the butter.
Add in the eggs and Splenda and continue mixing.
Add in the yogurt, lemon zest, lemon juice, milk and vanilla and continue mixing.
While mixing on low speed, add in the flour mixture, a couple of spoonfuls at a time.
Divide the batter between the 12 lined muffin tins.
Bake for 18-22 minutes or until a toothpick comes out clean when inserted into the middle.
Allow the muffins to cool slightly and then transfer them onto a wire cooling rack.
Glaze if desired.