Nonna's Homemade Italian Salad Dressing

Nonna's Homemade Italian Salad Dressing
Ingredients:
3 Cloves Garlic
1 small bunch Parsley
Lemon
1 tsp Mustard
4 Tbsp Olive Oil
1 tsp Balsamic Vinegar
1 tsp Capers (Optional)
Salt to taste