The optimal way to bet in Blackjack involves using a consistent betting strategy and managing your bankroll effectively. For most players, betting the same amount on each hand, known as flat betting, is the safest approach. However, if you're counting cards, you can adjust your bet size based on the deck's composition, increasing bets when the deck is rich in high cards and decreasing them when it's more favorable to the dealer. Advanced bettors might use the Kelly Criterion, which calculates how much to bet based on your edge over the house. Regardless of the approach, it’s crucial to bet a small percentage of your bankroll to minimize risk and avoid chasing losses. When the odds are in your favor, you can consider increasing your bet slightly, but always avoid overbetting or making impulsive bets.