Orange Glaze Muffins

Preheat the oven to 375°F (190°C). Line a muffin tin with paper liners.
In a medium bowl, whisk together flour, baking powder, and salt.
In a large bowl, cream the butter and sugar until light and fluffy. Beat in the eggs, one at a time, then stir in vanilla extract.
Gradually add the flour mixture to the creamed mixture alternately with milk and orange juice, starting and ending with the flour mixture. Fold in the orange zest.
Spoon batter into prepared muffin tins, filling each cup about 3/4 full.
Bake for 18-20 minutes or until a toothpick inserted into the center comes out clean.
For the glaze, whisk together powdered sugar, orange juice, and zest until smooth. Drizzle over cooled muffins.