instruction:
Given a paragraph about cooking, and a set of conversational questions and answers about the paragraph, say whether the passage contains sufficient information to answer the follow-up question. Say Yes if it is answerable; otherwise, say No. The paragraph has the prefix 'CONTEXT:'. Each conversation question has a prefix `Q:` followed by the answer prefix `A:`, and the follow-up question has a prefix `FOLLOWUP_Q:`.
question:
CONTEXT: I have seen this happening more than once. While I don't know the whole theory behind it, each time it happened, there was something just below the hole, let's call it "the lump". What I think happens is that the lump is too heavy. When the batter below it tries to rise, it doesn't have the strength to push up the lump. This could be combined with differences in heat transfer throughout the batter vs. on the batter-lump transition in preventing rising (I am certain they exist, but I don't know whether they have an effect at all). The result is a hole where the batter didn't rise, surrounded by nicely risen batter. As to where the lump comes from: you say "chocolate and pear cake". If you have pear pieces in the batter, right under the surface, they can do this. I have certainly seen it happen when the recipe includes fruit pieces in the batter. If there are no pear pieces, my second guess is badly dissolved flour. The directions for this type of cake normally include folding the whites very gently, and generally erring on the side of too little whisking. This could contribute to uneven batter texture, resulting in lumps. In the second case, the cake may have some less-than-pleasant pieces, but will still be mostly good. If it is fruit, the holes are purely a cosmetic problem. So not much harm done either way, unless you are shooting for a prize at a baking competition.  <sep>  Q: I baked a chocolate and pear cake whose batter is made with yolks, sugar, butter, melted chocolate and amaretti, flour and baking powder and whisked whites. It was (not very evenly) divided in two layers, sandwiching a layer of pear pieces pre-cooked in rum.### My question is: what are the holes due to? A: I have seen this happening more than once. While I don't know the whole theory behind it, each time it happened, there was something just below the hole, let's call it "the lump  <sep> FOLLOWUP_Q: Uneven division of batter?
answer:
Yes


question:
CONTEXT: Eggs are already 3/4 water anyway!By mixing in a small quantity of extra water before you cook the eggs, you are slowing down the cooking process by making more water available that has be evaporated. This keeps the cooking temperature to less than 100Â°C (212Â°F) for longer, therefore increasing the the time for the egg proteins to foam and expand before settingThe amount of water you need to add depends on; personal preference, the type of egg, and how old it is. Older eggs generally require a little more waterAdding skim milk will enhance this process slightly too. Adding extra fat will generally not enhance this processBONUS TIP To make even more spectacular omelettes place a loose fitting lid over the pan to increase the steam exposure all around, and let the egg fully develop  <sep>  Q: Why is water often added to the eggs when making omelettes?###Hello?
answer:
Yes


question:
CONTEXT: Technically, this is "buttermilk" - the milk left over from churning butter.Of course, this is sweet buttermilk, so it won't really work for most recipes calling for buttermilk (they assume the cultured version, which is acidic, and has that purpose in recipes).For sweet buttermilk, you can just drink it. You can use it in cooking, much like milk - perhaps closer to skimmed milk, since much of the fat (butter) has been removed. You could maybe make cheese with it, if you want, though it will be a lower fat cheese.You can take your chances making cultured buttermilk the old fashioned way (leave it until it's "soured"), if you don't mind the risk. You can culture your own buttermilk - I've had success taking regular store bought buttermilk, and adding a glug of that to milk to culture it (or pouring milk into the freshly emptied bottle and letting it sit), or else you can find the actual culture used (look for places with cheesemaking cultures as a starting point and refine your search from there). The last may only be worthwhile if you're planning to make buttermilk regularly, otherwise it's a lot of effort for a one-time product.  <sep>  Q: What to do with leftover cream after churning butter? A: You can use it in cooking  Q: What could I make with it?###Anything besides cheese?###Is it basically just milk? A: You can culture your own buttermilk  Q: Is butter milk just a buttery milk that you just drink? A: Technically, this is "buttermilk" - the milk left over from churning butter  Q: How do you do that? A: I've had success taking regular store bought buttermilk, and adding a glug of that to milk to culture it (or pouring milk into the freshly emptied bottle and letting it sit  <sep> FOLLOWUP_Q: How long do you let it sit?
answer:

No