Read more: 20 Keurig K-Cup Coffee Pods, Ranked Worst To Best With their signature vibrant yellow hue, lemon bars already look pretty appetizing. But, switching up their look is totally an option too.

According to Healthline, mixing a cup of coffee with the juice of one lemon has become a trendy practice. Coffee, known for its caffeine content, enhances energy, mood, and alertness, while lemons, ...