Cucumber and Cilantro Chutney Sandwich

Name: Kicky Cucumber Sandwich
Ingredients: 1 large bunch cilantro; 1 jalapeño, stem removed; 2 garlic cloves; 3 Tbsp. fresh lemon juice; 1 tsp. extra-virgin olive oil; 1 tsp. Diamond Crystal or ½ tsp. Morton kosher salt, plus more; 2 Tbsp. whipped cream cheese; 2 ½”-thick slices white sandwich bread (such as Pullman); 5–7 English hothouse cucumber slices