Broccoli Cheese Soup

1/2 cup butter
1 onion chopped
1 16 oz frozen broccoli
3 cups chicken stock
1 cup cubed cheddar
1 tsp garlic minced  (I use roasted as I always have it in my fridge)
2/3 cup cornstarch
1 cup water
1/2 cup fresh broccoli florets


in a stock pot melt butter add onions cook until soft
Stir in both broccoli and pour in chicken stock
Reduce heat to low stir in cheese,garlic stir til cheese is melted
add milk stir well
In a bowl put cornstarch and stir in water
Stir into soup, turn heat to medium low
stir until soup thickens.
reduce heat

garnish with shredded cheese