Pretzel Salad

2 c crushed pretzels
3/4 c melted butter
4 T sugar
1 c sugar
6 oz strawberry jello
1 3/4 c boiling water
8 oz cream cheese
1 10 oz cool whip
10 oz frozen strawberries

Mix pretzels, butter & 4 T sugar. Pat into a 9x13 pan. Bake at 400*
for 8 minutes, cool. Cream together cream cheese & 1 c sugar. Fold in
cool whip. Spread over cooked pretzel mixture. Prepare jello using 1
3/4 c boiling water. Stir frozen strawberries into jello mixture & pour
on top of cool whip. Refrigerate until firm.