Sprinkle yeast over milk. Place bread flour in 5-qt. bowl of mixer fitted with dough hook. Add milk mixture, eggs, sugar and salt. Mix on low speed about 4 min. or until well combined. On medium speed, gradually add butter, mixing well after each addition. Mix on medium speed 10 to 15 min. or until dough pulls away from side of bowl.

Spread dough evenly onto greased parchment paper-lined sheet pan. Cover pan with plastic wrap and refrigerate overnight.

Make Filling the same day as you are rolling out the dough. Combine butter, corn syrup, cream, cocoa and salt in heavy saucepan. Cook on low heat until butter is melted, stirring constantly. Add chocolate; heat until melted, stirring constantly. Transfer mixture to clean bowl. Stir in vanilla. Cool to 95°F. Stir in OREO Pieces just before using.

To assemble, place dough on lightly floured work surface; sprinkle lightly with additional flour. Roll out to 30 x10-inch rectangle. Spread 11 oz. cooled Filling to edges of Dough. Roll up from the long edge. (If dough feels too soft, refrigerate 10 min., then continue.) Cut log in half lengthwise. Lay dough halves across each other in the shape of a "plus sign". Start on one half and twist dough halves together, then tuck cut end under, Repeat on other half. Cut lengthwise across long twisted dough into two pieces. Place each in a bakeable paper liner set on a parchment paper-lined half sheet pan forming a snail shape. Tuck any loose ends under. Proof dough until doubled in volume or until a finger gently inserted leaves an impression.

Bake rolls in 325°F standard oven 60 to 65 min. or until internal temperature registers 195°F. Allow to cool completely on pan.

Meanwhile, heat chocolate, butter and corn syrup in heavy saucepan on low heat until chocolate is completely melted, stirring constantly. Remove from heat; stir in vanilla. Cool at room temperature to 100°F or lower.

Drizzle each snail with 1-3/4 oz. of the Chocolate Glaze. Immediately sprinkle each with1-3/4 oz. of the OREO Cookie Pieces. Allow Glaze to set before slicing.