Lemon Crisp Cookies

1 package (18.25) lemon cake mix
1 cup crisp Rice Krispies cereal
1 teaspoon grated lemon peel
1/2 cup butter, melted
1 egg, beaten
Preheat oven to 350 degrees.
In a large bowl combine the cake mix, Rice Krispies and grated lemon peel.
Add the butter and egg and mix well. The dough will be crumbly.
Shape dough into 1-inch balls and place 2 inches apart on ungreased cookie
sheets. Bake at 350 degrees for 10-12 minutes or until set. Allow cookies
to cool on cookie sheets for 5 minutes. Use a spatula to remove cookies
from cookie sheets and place on wire racks to cool completely.
Yield: 3 1/2 dozen cookies.

The cookies were very soft when they came out of the oven and at first I wondered if I should bake them longer but the edges were getting brown so I took them out. Once they cooled they became nice and crisp.