INGREDIENTS
2
spray(s) cooking spray
1/2
cup(s) regular butter softened
2/3
cup(s) sugar granulated
2
large egg(s)
1 tsp
vanilla extract
1 tsp
lemon zest
2 1/2
cup(s) all-purpose flour
2 tsp
baking powder
1/2 tsp
table salt
2/3
cup(s) fat free skim milk
3
large egg white(s)
2
cup(s) powdered sugar divided
1/4
cup(s) water boiling, or more if necessary, divided
1/2 tsp
vanilla extract
1 tbsp
unsweetened cocoa powder