Making a trip to Costco almost always results in purchasing something you didn't initially plan to bring home. That's because the creative minds behind the wholesale grocery club seem always to be innovating and unveiling new foods that you have to try.Well, this fall is no exception, as the Seattle-based retail giant is introducing some fresh and mouth-watering baked goods—many of which have been spotted by Instagram-based expert, Costco Buys. Here are the new fall treats you'll see at Costco that just may find their way into your pantry.And for more, check out these 52 Life-Changing Kitchen Hacks That'll Make You Enjoy Cooking Again.1 Edible Brownie BatterEdible brownie batter? Yes. This vegan and gluten-free dipping sauce produced by Delighted by Deserts is now available in select Midwestern Costco locations, according to @CostcoBuys. Packaged as a "desert humus," the makers of this brownie batter say it's "Dense, fudgy, and (dare we say) more delicious than the real thing." (Related: 7 Things You Had No Idea Costco Actually Sells.)2 Pumpkin PieAs we've reported before, Costco is bringing back its beloved pumpkin pie this season. As the @thecostcoconnoisseur Instagram account exclaimed, "The iconic KS Pumpkin Pies are here!! $5.99 for 58 oz of deliciousness! (That's over 3.5 lbs of pie!!)." And if you can't get enough pumpkin, make sure to check out these 21 other pumpkin spice foods you'll love this fall.3 Pumpkin Streusel MuffinsColder temperatures bring shorter days, sweaters, and more pumpkin-flavored items. Take, for example, Costco's introduction of Pumpkin Streusel Muffins. According to CostcoBuys, these new muffins come in six-packs for $7.99 (Related: What Happens To Your Body When You Drink a Pumpkin Spice Latte.)4 Cookies and Cream CupcakesCan't decide between cookies or cupcakes? Costco's Bakery has the perfect solution in their new Cookies and Cream Cupcakes. By the looks of the image posted on CostcoBuys, these are cupcakes topped with icing and a chocolate cookie on top, a dozen of which you can purchase for $10.99. (Related: The Best Cupcake in Every State.)5 Keto-friendly BreadNot all of the new Costco-baked offerings this fall are sweet. CostcoBuys alerted its Instagram followers of Keto-Friendly Bread and Buns produced by Natural Ovens. "They look like they're the perfect low carb bread options!" According to CostcoBuys, the new item is $7.89 for a loaf of bread and $6.79 for a package of buns.For more Eat This, Not That! news, check out 15 Classic American Desserts That Deserve a Comeback.