With mixer of wire whip, beat warm water, salt and 2 C. Roll Mix on medium speed for 2 minutes. Add remaining Roll Mix and beat 1 minute. Stir in flour. Let rest in bowl 5 minutes. Turn out and knead until smooth, using only enough flour to keep dough from sticking. Dough will be soft. Place dough in large, greased bowl, turning to grease all sides. Let rise until double, about 45 minutes. Punch down and knead about 5 strokes. Let rise until double, about 30 minutes. Using a fork, beat egg white with water.

Pinch off pieces of dough the size of 2 eggs and roll into 15-inch ropes, dusting with flour as necessary to keep from sticking. Form into pretzel shape. Place a dab of egg white on dough to hold ends down. Brush pretzel with egg white and sprinkle on coarse salt.

Bake at 350° for 15 minutes. Place pan under broiler for 5 minutes to brown tops. Makes about 2 dozen large pretzels.