Science Behind the Most Intense Chocolate Flavor
Nothing is better than a decadent, rich chocolate cake. But often, they can be dry or lacking in flavor. Here is the science behind how to get the most chocolate flavor out of your chocolate cake.
Starting with the critical ingredient, chocolate. First, cocoa powder and chocolate have a flavor and compound difference. Cocoa beans are dried, roasted, and go through a grinding process that produces a paste known as cocoa liquor. The liquor is pressed to separate the cocoa solids from the cocoa butter. The solids are ground to fine powder, resulting in cocoa powder.
You might notice cocoa powder has less intense flavor than a chocolate bar, and here’s why.
A chocolate bar has more of an intense chocolate flavor due to how it’s processed. The chocolate liquor, instead of being separated, is transferred to a conching machine. The machine is a large vessel with agitators and rollers. As the chocolate liquor is heated and agitated, volatile compounds that create bitter flavors are released reducing bitter and acidic compounds. The long process offsets bitterness and produces an intense, concentrated flavor.
Blooming Cocoa Powder
If using cocoa powder, it is essential to bloom it in coffee or another hot liquid. Blooming cocoa in coffee counteracts bitterness through taste masking, a phenomenon where one flavor component suppresses or diminishes the perception of another flavor. Blooming allows the cocoa to develop more flavors and fully hydrate before being incorporated into the batter.
Sweet Addition of Sugar
Sugar adds sweetness and helps balance the bitterness of the cocoa. You’ll notice once you add your sugar to bloomed chocolate, the sugar molecules dissolve into a syrup-like consistency. This is because sugar is hygroscopic, meaning it attracts and retains moisture. This helps prevent cocoa from clumping together, forming lumps, or creating a gritty texture.
Most Delicate Texture
Lastly, to maintain the tender, delicate crumb structure of the cake. It’s essential to limit gluten development. The more gluten develops the more the texture changes, resulting in a tough, chewy texture like bread. Buttermilk is more acidic than regular milk and helps break down long gluten strands to achieve a delicate crumb structure. Water aids in gluten formation, so using ghee over butter results in a tender texture as fat coats the flour particles, reducing gluten development. Since oil prevents moisture loss, the cake will last longer and stay light and tender, preventing it from drying out. The result will be a delicious chocolate cake with a delicate crumb structure.
SOURCES
Sheryl Barringer, Professor of Food Science and Technology, The Ohio State University, The fascinating chemistry of chocolate
Veronika Barišić, Mirela Kopjar, Antun Jozinović, Ivana Flanjak, Đurđica Ačkar,* Borislav Miličević, Drago Šubarić, Stela Jokić, and Jurislav Babić, The Chemistry behind Chocolate Production
Arunkumar K., Jegadeeswari V. Evaluating the processed beans of different cocoa (Theobroma cacao L.) accessions for quality parameters.
Bertazzo A., Comai S., Brunato I., Zancato M., Costa C.V.L. The content of protein and non-protein (free and protein-bound) tryptophan in Theobroma cacao beans.
Granvogl M., Bugan S., Schieberle P. Formation of Amines and Aldehydes from Parent Amino Acids during Thermal Processing of Cocoa and Model Systems: New Insights into Pathways of the Strecker Reaction.
Quiroz-Reyes C.N., Fogliano V. Design cocoa processing towards healthy cocoa products: The role of phenolics and melanoidins.
