Heat oven to 350°F. Spray 13x9-inch pan with Crisco® Original No-Stick Cooking Spray. Let cookie dough stand at room temperature 10 minutes to soften.
Finely chop 1 cup of the pretzels; place in large bowl. Add cookie dough and shortening. Beat with electric mixer on low speed until well mixed. Press dough evenly in pan. Bake 14 to 18 minutes or until crust is light golden brown. Remove from oven; cool 10 minutes.
Meanwhile, in 2 quart heavy saucepan, heat sweetened condensed milk over medium heat 5 to 8 minutes, stirring constantly until hot and mixture is thin. Remove from heat. Stir in peanut butter and chocolate hazelnut spread until well blended. Spread over baked crust. Sprinkle with remaining 3/4 cup coarsely chopped pretzels. Bake 15 to 20 minutes longer or until edges are golden brown. Cool completely, about 1 1/2 hours. Drizzle with caramel syrup. Cut into 6 rows by 4 rows. Store covered.