Cookie butter beat out options like Mandarin Orange Chicken and Joe's Diner Mac 'n Cheese to snag the No. 1 spot. Price: $3.69Sourdough triumphed over year-round options like the Soft Pretzel Stick and Ciabatta Rolls and the seasonal Almond Kringle and Chocolate Babka. Price: $2.99 - $3.49Even the infamous Two Buck Chuck lost to the seasonal beverage. Price: $2.99Dark chocolate is always hot at Trader Joe's, with Sea Salt & Turbinado Sugar Dark Chocolate Almonds and Dark Chocolate Sea Salt Caramels also in contention for customers' favorite candy. Price: $4.29Trader Joe's has a varied and affordable specialty-cheese selection, but the Unexpected Cheddar Cheese is the best of the best. Runners-up include Double Cream Brie, Cheddar Cheese with Caramelized Onions, Creamy Toscano Cheese Soaked in Syrah, and Cranberry Chevre. Price: $3.99The humble ketchup won customers' hearts, beating quirky options like Green Dragon Hot Sauce and Sriracha and Roasted Garlic BBQ Sauce. Price: $1.99Trader Joe's has a broad selection of frozen foods, including Joe’s Diner Mac ‘n Cheese, Chocolate Croissants, Extra Fine French Green Beans, and Chicken Tikka Masala. Price: $4.99The meatless Soy Chorizo beat out meaty options like Chicken Sausage, Uncured Apple Smoked Bacon, and Traditional Carnitas. Price: $1.99Trader Joe's bananas are $0.19 — and have been since 1999. Price: $0.19In addition to basics like baby spinach and butter lettuce, arugula was also more popular than the seasonal Harvest Blend with Baby Kale, Pumpkin Seeds, Pumpkin Cornbread Croutons & Pumpkin Vinaigrette. Price: $2.49Other popular snacks in 2015: Sweet Potato Tortilla Chips, Organic Corn Chip Dippers, Peanut Butter Filled Pretzels, and Olive Oil Popcorn. Price: $1.99 Trader Joe's had a plethora of pumpkin items this year, but at the end of the day, it was the simplest option that took home the prize. Price: $1.99 All prices according to the most recent Trader Joe's fliers.