Salmon Chowder

Name: Salmon Chowder
Ingredients: 4 slices thick-cut bacon, cut crosswise into 1/4-wide strips; 2 medium leeks, white and pale green parts only, thinly sliced and rinsed; 2 tbsp. butter or extra-virgin olive oil; 4 cloves garlic, minced; 1 jalapeño, stemmed, seeded, and minced, plus 1 thinly sliced, for garnish; 1 lb. baby red potatoes, quartered; 2 c. water; 1 c. clam juice; 1 tsp. fresh thyme leaves, roughly chopped; 1 bay leaf; 1 (1 1/2-lb.) skinless salmon fillet, cut into 1 pieces; 2.25 c. fresh or frozen corn kernels (from about 3 ears); 0.75 c. heavy cream; 2 tbsp. fresh lemon juice; 0.25 packed fresh parsley leaves, roughly chopped, divided