Heat oven to 350ºF.
Separate crescent dough into 8 triangles. Brush with steak sauce; top with Singles pieces. Place 1 frank on wide end of each dough triangle; roll up. Place, seam-sides down, on baking sheet. Brush with egg; sprinkle with poppy seed.
Bake 10 to 12 min. or until golden brown, Meanwhile, mix all remaining ingredients until well blended.
Serve franks with sauce.