Margarita Cake with Tequlia Lime frosting

I have been wanting to make this for some time. Yes, it is a boxed cake mix. No, I do not feel bad. It smelled so good while I was baking it. You can find the cake recipe on Better Crocker.com

1 1/2	cups coarsely crushed pretzels
1/2	cup sugar
1/2	cup butter or margarine, melted
1	box Betty Crocker® SuperMoist® white cake mix
1 1/4	cups bottled nonalcoholic margarita mix
1/3	cup vegetable oil
1	tablespoon grated lime peel
3	egg whites
	Additional grated lime peel, if desired

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.	Heat oven to 350°F (or 325°F for dark or nonstick pan). Grease bottom only of 13x9-inch pan with shortening and lightly flour (or spray bottom with baking spray with flour). In medium bowl, mix pretzels, sugar and butter. Sprinkle evenly on bottom of pan; press gently.
.	In large bowl, beat cake mix, margarita mix, oil, 1 tablespoon lime peel and the egg whites with electric mixer on low speed 30 seconds. Beat on medium speed 2 minutes, scraping bowl occasionally. Pour batter over pretzel mixture.
	Bake 35 to 40 minutes or until light golden brown and top springs back when touched lightly in center. Cool completely, about 2 hours. The Tequila Lime Frosting Recipe 1/4 cup butter, softened 1 tbsp milk 3 tbsp lime juice 1 tbsp tequila 2+ cups confectioners' sugar Cream together butter, milk, lime juice, tequila, and 2 cups of confectioners' sugar. Add in more sugar as needed to make frosting stiff, but spreadable. In my cake, I omit the pretzel crust and just sprinkle the tequila frosting with pink sea salt.