1Heat oven to 350°F. In large bowl, stir cookie mix, melted butter and egg until soft dough forms. Spread dough in bottom of a 9x13-inch ungreased pan. Bake 12 to 15 minutes or until light golden brown.
2Meanwhile, in small microwavable bowl, microwave sweetened condensed milk uncovered on High for 1 minute. Stir in instant coffee until coffee is mostly dissolved; set aside.
3Sprinkle warm crust with chocolate chips, toffee bits and pecans. Drizzle sweetened condensed milk mixture evenly over pecans.
4Bake 23 to 27 minutes or until top is golden brown and bubbly in center. Cool completely, about 2 hours. For bars, cut into 9 rows by 4 rows. Store covered at room temperature.