Combine all cake ingredients in a large mixing bowl. Beat for about 2 minutes, or till smooth. Pour batter into muffin cups filled with paper liners. Fill just over half way full. (I ended up with 26 cupcakes.)
Bake at 350° for about 15-20 minutes, or till a toothpick comes out clean. Let cool for about 5-10 minutes.
Combine glaze ingredients in a small bowl and whisk till smooth. Brush glaze evenly over warm cupcakes. Allow cupcakes to cool completely, then frost. Garnish with fresh strawberries if desired.
Frosting:
Beat cream cheese and butter till smooth. Add salt, lemon zest, and 4 cups of powdered sugar. Beat in the strawberry jam, and add more powdered sugar to get the consistency you need. Pipe onto cooled cupcakes.