Directions. 1  In a heavy-bottom 4-quart pot, heat butter and olive oil over medium heat. Saute leeks 5-7 minutes, until tender. 2  Add cucumber and chicken stock. Simmer until cucumber is softened (about 6-8 minutes). 3  Pour small batches of cucumber soup into a blender and puree until smooth.
Grill for 5-10 minutes, depending on how hot the grill is (you do not want the chicken to burn). Once you have a good sear on one side, move the chicken pieces to the cooler side of the grill.
Cooking a roaster is an exercise in patience. It can take up to 45 minutes or so on the cooler side of the grill before it's ready to be crisped up. This means that if you're the type of cat who likes to add some wood chips to their grill for some intense barbecue flavor, this is the chicken for you.