Basil sauce for chicken

This recipe comes from my mother. I believe I was complaining about having too much basil, a concept she found hard to fathom.

2–3 cloves garlic, crushed
2 tbl basil, chopped
1 tsp brown mustard
1 tbl lemon juice
2 tbl olive oil

I don't have any instructions for this, so I assume it's put together like a salad dressing.