Rusk/rʌsk/ Definition 1 of 2Pro Tip 1/3Tea Companion In many cultures, rusks are dipped into tea or coffee as a snack. She enjoyed her afternoon tea with a rusk on the side. Pro Tip 2/3Twice-baked Texture Rusks are crispy and firm, making them ideal for dunking without falling apart. My rusk stayed intact even after I soaked it in my coffee. Pro Tip 3/3Sweet or Savory Rusks can be sweet with added sugar or spices, or savory with salt and herbs. He chose a sweet rusk flavored with cinnamon for his snack.