Creamy tahini dressing

This is delicious over a salad. The good fats will help to keep you feeling full, and will help your brain to focus.

1/3 cup tahini
½ cup water
Flesh from ½ medium avocado
2 tablespoons lemon juice
1 clove garlic, crushed (optional)
Salt and pepper

Blend all ingredients in a blender until smooth. Pour over salad.