Step 1

Spray 5-quart slow cooker with cooking spray. Mix onions, 2 tablespoons melted butter, the salt and pepper in slow cooker. Cover; cook on Low heat setting 10 to 12 hours or until onions are very tender and browned.

Step 2

Drain mixture, and return onions to slow cooker. Discard liquid. Stir cream cheese and soy sauce into onion mixture in slow cooker.

Step 3

Cover; cook on Low heat setting 15 minutes. Stir in mayonnaise; top with parsley and thyme. Serve with toasts.

Step 4

At least 2 hours before serving, make the toasts. Heat oven to 350°F. Spray 15x10x1-inch pan with cooking spray. Bake French bread loaves 24 to 26 minutes or until browned. Cool completely, at least 30 minutes. Cut each loaf into 1/2-inch slices. Brush slices on both sides, using 4 tablespoons melted butter. Bake half of the slices at a time on pan 15 to 20 minutes, turning once, until deep golden brown and crispy.