At Vancouver’s PNE this year, fair-goers will have the chance to sample Armstrong cheese with Chef Dale MacKay.  Here’s his recipe for a stellar cheese sandwich. Ingredients: Olive-Tomato Spread ½ roasted garlic clove 3½ oz (100 g) black olives, pitted 6 medium semi-dry tomatoes 5 tbsp (75 mL) olive oil 10 leaves fresh flat leaf parsley ¼…