Step 1: Preheat Oven : Preheat the oven to 350°F (175°C). Line a 12-cup muffin tin with paper liners or lightly grease it.

Step 2: Mix Dry Ingredients : In a large bowl, whisk together flour, baking powder, baking soda, and salt.

Step 3: Mix Wet Ingredients : In another bowl, whisk together melted butter, sugar, eggs, vanilla extract, yogurt, orange zest, and orange juice until smooth.

Step 4: Combine Wet and Dry Ingredients : Add the wet ingredients to the dry ingredients and fold gently until just combined. Carefully fold in cranberries. Do not overmix.

Step 5: Fill Muffin Cups : Divide the batter evenly among the prepared muffin cups, filling each about 2/3 full.

Step 6: Bake Muffins : Bake for 20-25 minutes or until a toothpick inserted into the center comes out clean. Cool in the pan for 5 minutes, then transfer to a wire rack.

Step 7: Prepare Glaze ; In a small bowl, whisk together powdered sugar, orange juice, and optional orange zest until smooth. Adjust consistency with more juice for thinner glaze or more powdered sugar for thicker glaze.

Step 8: Glaze Muffins : Drizzle glaze over the cooled muffins and allow it to set before serving.