Don't Skip This Crucial Step Before Baking Trader Joe's Chocolate Croissants - Tasting Table
Briefly

Trader Joe's frozen croissants are a delightful treat that require careful preparation to enhance their flavor and texture. Customers are advised to proof these croissants overnight by leaving them out at room temperature, allowing the yeast to rise and create the perfect flaky layers. Without this step, the baked croissants can turn out dense and chewy, lacking the lightness of properly risen pastries. A simple experiment comparing frozen versus overnight-proofed croissants reveals a substantial difference in quality and enjoyment, marking a significant shopping highlight at Trader Joe's.
The difference between croissants baked straight from frozen and those proofed overnight is huge: one batch is flaky and tender, while the other is dense and rubbery.
Proofing the croissants allows them to rise, enabling the yeast to ferment and create air pockets for the lovely layers typical in laminated pastries.
Read at Tasting Table
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